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Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements (ISO 5167-1:2022). Original standard UNE-EN ISO 5167-1-2023 in PDF full version. Additional info + preview on request

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Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 2: Orifice plates (ISO 5167-2:2022). Original standard UNE-EN ISO 5167-2-2023 in PDF full version. Additional info + preview on request

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Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 3: Nozzles and Venturi nozzles (ISO 5167-3:2022). Original standard UNE-EN ISO 5167-3-2023 in PDF full version. Additional info + preview on request

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Destructive tests on welds in metallic materials. Bend tests. Original standard UNE-EN ISO 5173-2023 in PDF full version. Additional info + preview on request

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Pulps. Laboratory wet disintegration - Disintegration of mechanical pulps at ≥ 85°C. Original standard UNE-EN ISO 5263-3-2023 in PDF full version. Additional info + preview on request

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Paper and board. Determination of water absorptiveness. Cobb method. Original standard UNE-EN ISO 535-2023 in PDF full version. Additional info + preview on request

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